Knoxville Weather Forecast

    • 44
    • 66

    Mostly Sunny

    • 49
    • 70

    Mostly Cloudy

    • 53
    • 67

    Rain Showers Likely

    • 56
    • 75

    Mostly Cloudy

    • 56
    • 79

    Mostly Cloudy

    • 59
    • 82

    Slight Chance Thunderstorms

Today 20 May Knox

Sunny. Near steady temperature in the mid 60s. Northeast Winds around 10 Mph.

Tonight 20 May Knox

Mostly clear. Lows in the mid 40s. Northeast Winds 5 to 10 Mph with Gusts up to 20 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Knoxville Temperature Statistics

May Temperature

Galesburg Municipal Airport (7.5 miles)

  • Lowest 7 May, 2026

    32.7 °F

  • Average May

    58.6 °F

  • Highest 17 May, 2026

    84.4 °F

Climate (2021–Present)

Galesburg Municipal Airport (7.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    41.7 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    62.4 °F
Get WillyWeather+ to remove ads